Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
===========================================================================
AUSCERT Security Bulletin
ASB-2021.0180
Microsoft Patch Tuesday update for Windows for September 2021
15 September 2021
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: Windows
Windows RT
Windows Server
HEVC Video Extensions
MPEG-2 Video Extension
Operating System: Windows
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Increased Privileges -- Remote with User Interaction
Denial of Service -- Existing Account
Access Confidential Data -- Remote/Unauthenticated
Provide Misleading Information -- Existing Account
Unauthorised Access -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2021-40447 CVE-2021-40444 CVE-2021-38671
CVE-2021-38667 CVE-2021-38661 CVE-2021-38644
CVE-2021-38639 CVE-2021-38638 CVE-2021-38637
CVE-2021-38636 CVE-2021-38635 CVE-2021-38634
CVE-2021-38633 CVE-2021-38632 CVE-2021-38630
CVE-2021-38629 CVE-2021-38628 CVE-2021-38624
CVE-2021-36975 CVE-2021-36974 CVE-2021-36973
CVE-2021-36972 CVE-2021-36969 CVE-2021-36967
CVE-2021-36966 CVE-2021-36965 CVE-2021-36964
CVE-2021-36963 CVE-2021-36962 CVE-2021-36961
CVE-2021-36960 CVE-2021-36959 CVE-2021-36955
CVE-2021-36954 CVE-2021-26435
Reference: ASB-2021.0177
OVERVIEW
Microsoft has released its monthly security patch update for the
month of September 2021.
This update resolves 35 vulnerabilities across the following
product(s): [1]
HEVC Video Extensions
MPEG-2 Video Extension
Windows 10
Windows 8.1
Windows RT 8.1
Windows Server
Windows Server 2012
Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
Windows Server 2022
IMPACT
Microsoft has given the following details regarding these vulnerabilities.
Details Impact Severity
CVE-2021-26435 Remote Code Execution Critical
CVE-2021-36954 Elevation of Privilege Important
CVE-2021-36955 Elevation of Privilege Important
CVE-2021-36959 Spoofing Important
CVE-2021-36960 Information Disclosure Important
CVE-2021-36961 Denial of Service Important
CVE-2021-36962 Information Disclosure Important
CVE-2021-36963 Elevation of Privilege Important
CVE-2021-36964 Elevation of Privilege Important
CVE-2021-36965 Remote Code Execution Critical
CVE-2021-36966 Elevation of Privilege Important
CVE-2021-36967 Elevation of Privilege Important
CVE-2021-36969 Information Disclosure Important
CVE-2021-36972 Information Disclosure Important
CVE-2021-36973 Elevation of Privilege Important
CVE-2021-36974 Elevation of Privilege Important
CVE-2021-36975 Elevation of Privilege Important
CVE-2021-38624 Security Feature Bypass Important
CVE-2021-38628 Elevation of Privilege Important
CVE-2021-38629 Information Disclosure Important
CVE-2021-38630 Elevation of Privilege Important
CVE-2021-38632 Security Feature Bypass Important
CVE-2021-38633 Elevation of Privilege Important
CVE-2021-38634 Elevation of Privilege Important
CVE-2021-38635 Information Disclosure Important
CVE-2021-38636 Information Disclosure Important
CVE-2021-38637 Information Disclosure Important
CVE-2021-38638 Elevation of Privilege Important
CVE-2021-38639 Elevation of Privilege Important
CVE-2021-38644 Remote Code Execution Important
CVE-2021-38661 Remote Code Execution Important
CVE-2021-38667 Elevation of Privilege Important
CVE-2021-38671 Elevation of Privilege Important
CVE-2021-40444 Remote Code Execution Important
CVE-2021-40447 Elevation of Privilege Important
MITIGATION
Microsoft recommends updating the software with the version made
available on the Microsoft Update Catalogue for the following
Knowledge Base articles. [1].
KB5005563, KB5005565, KB5005566, KB5005568, KB5005569
KB5005573, KB5005575, KB5005607, KB5005613, KB5005623
KB5005627
REFERENCES
[1] Microsoft Security Update Guidance
https://portal.msrc.microsoft.com/en-us/security-guidance
AusCERT has made every effort to ensure that the information contained
in this document is accurate. However, the decision to use the information
described is the responsibility of each user or organisation. The decision to
follow or act on information or advice contained in this security bulletin is
the responsibility of each user or organisation, and should be considered in
accordance with your organisation's site policies and procedures. AusCERT
takes no responsibility for consequences which may arise from following or
acting on information or advice contained in this security bulletin.
===========================================================================
Australian Computer Emergency Response Team
The University of Queensland
Brisbane
Qld 4072
Internet Email: auscert@auscert.org.au
Facsimile: (07) 3365 7031
Telephone: (07) 3365 4417 (International: +61 7 3365 4417)
AusCERT personnel answer during Queensland business hours
which are GMT+10:00 (AEST).
On call after hours for member emergencies only.
===========================================================================
-----BEGIN PGP SIGNATURE-----
Comment: http://www.auscert.org.au/render.html?it=1967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=HsTO
-----END PGP SIGNATURE-----